CVE-2026-93829
kernel: smb: client: fix races in cifsd thread creation
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 24, 2026
Updated · September 29, 2026
Description
A flaw was found in the Linux kernel. A race condition exists in the Server Message Block (SMB) client during background worker thread creation, allowing a newly spawned thread to access connection session data before it has been completely initialized. A local user initiating an SMB connection can trigger this timing issue, causing the kernel to hang or crash and resulting in a Denial of Service (DoS).
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-366 · Race Condition within a Thread